STUDIES OF THE MECHANICALLY GENERATED NOISE IN STATIC MERCURY DROP ELECTRODES

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: ENGBLOM S, BOBACKA J, IVASKA A, NAGY G, SARKANY P, PUNGOR E
Förläggare: ELSEVIER SCIENCE BV
Publiceringsår: 1992
Tidskrift: Talanta
Tidskriftsakronym: TALANTA
Volym: 39
Nummer: 7
Artikelns första sida, sidnummer: 819
Artikelns sista sida, sidnummer: 824
Antal sidor: 6
ISSN: 0039-9140


Abstrakt

The moving parts needed for the operation of a mechanized static mercury drop electrode were found to generate additional noise which affects measurement of the polarographic current. A Fourier transformation method was employed in analysis of experimental data giving information about the frequency, amplitude and decay characteristics of the noise. The dominant noise frequency was found to depend on the drop size. Drop formation at a potential where no electrolysis takes place combined with a waiting period long enough for the mechanical vibrations to decay improved the precision of the polarographic current measurement.

Senast uppdaterad 2019-14-10 vid 05:36